package rmrs.persist.test;

import rmrs.persist.PersistentObject;
import rmrs.persist.PersistenceBroker;
import rmrs.persist.OID;
import java.util.Date;

public class Observation
    extends PersistentObject
{
    String   name;
    Interval value;
    String   unit;
    Date     time;
    
    // the idea was that this link be unidirectional from Patient
    // to Observation (admittedly artificial for the test.) Without
    // a field for the patient in the class, however, it's hard
    // to save the reference in the data base. Besides, this is the
    // more natural case to handle, so we require a TO-MANY link
    // to be navigable both ways.
    Patient  patient;

    public Patient getPatient() { return patient; }
 
    public Observation() { }

    public Observation(String name, Interval value, String unit, Date time) 
    { 
	this.name  = name;
	this.value = value;
	this.unit  = unit;
	this.time  = time;
    }
    
    public String toString() {
	StringBuffer buf = new StringBuffer("Observation[oid=");
	buf.append(getOID());
	buf.append(",patient=");
	if(patient != null)
	    buf.append(patient.getOID());
	else
	    buf.append("NULL");
	buf.append(",value=");
	buf.append(name);
	buf.append(",value=");
	buf.append(value);
	buf.append(",unit=");
	buf.append(unit);
	buf.append(",time=");
	buf.append(time);
	buf.append("]");
	return buf.toString();
    }
}